Color

#397964

#397964
hex#397964
rgbrgb(57, 121, 100)
hslhsl(160, 36%, 35%)
oklchoklch(0.527 0.075 169.5)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1546

Colors that go with #397964

Charcoal, Medium Violet Red and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #397964

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#79394f

#397944 · #396f79

#643979 · #796439

Split-complementary

Open in tool →

#79396f · #794439

#443979 · #79394f · #6f7939

Contrast

#397964 as textRatioAAAA largeAAAFix
Aaon white
5.13:1passpassfail
  • AAA: use #2e6150 as the text (7.14:1)
Aaon black
4.09:1failpassfail
  • AA: use #3e846d as the text (4.73:1)
  • AAA: use #4ea689 as the text (7.14:1)
  • AA: or shift the background to #f0f0f0 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397964 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #397964
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #397964 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397964-a2beb8-d459be-1f2c2d-e9f1eb?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md